Lampblack-machine.



W. H. DAVIS.

LAMPBLAGK MACHINE.

APPLICATION FILED NOV. 6, 1913.

1,1 1 1 09 Patentgd Sept. 22, 1914.

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INVE/VTUR. M/liarn H-DQV/ S.

W. H. DAVIS.

LAMPBLAGK MACHINE.

APPLICATION FILED NOV. e, 1913.

Patented Sept. 22, 1914.

2 SHEETS-SHEET 2.

WITNESSES flm 5% 1 04 3 7 v a MD H N m m m A TTORNEY.

, the quality andincrease the output of lamppractice inthis art to employ in lampblack the capacity or out-put of the machine will for discharging two flames at an inclination movable rod the tube'on which do not strike the surface of the tubes di ing had to the accompanying drawings,

sists in providing means for forming UNITED STATES.

WILLIAM H. DAVIS, or MUNCIE, INDIANA.

LAMPBLAcK-MAcHINE.

Specification of Letters Patent.

Application filed November 6, 1913. Serial No. 793,685.

To all whom it may concern Beit known that I, WILLIAM H. DAVIS, a citizen of the United States, and a resident of Muncie, county of Delaware, and State of Indiana, have'invented a certain new and useful Lampblack-Machine; and I do hereby declare that the following is a full, clear, and exact description thereof, reference bewhich like letters refer to like parts.

The objectof this invention is to improve black making machines. It has been the making machines revoluble tubes with means for forming the lampblack on the external surface thereof and means for scraping it off such external surface.

The chief feature of this invention cond an depositing lampblack on the inner surface of a tube, and means within such tube for. scraping-off the lampblack and. discharging it from the tube, and the combination of Ifieans for forming and depositing lampblack on both the outer surface and inner surface of said tube simultaneously, whereby be double. In this connection a burner or fuel supply pipe extends longitudinally through said tube and is provided with. suitable discharge nozzles, preferably inpairs,

from a vertical line so as to still further increase the capacity of the device. An imextends longitudinally through a scraper ispi'voted and ifdesired a conveyer extends longitudinally through the tube and operates in the lower part thereof for dischargingthe lampblack,

is not necessary. The quality of the lampblack formed with in the tubes is improved because the flames and at an inclination and, therefore, softly supply the lampblack to the tubes and also a portion of the lampblack is carried longitudinally ofthe tube by the longitudinal current betweenthe flames and it, therefore, gathers on the inner sur face of the tube and this-very-soft application of the lampblack to'the tube improves the quality of the lampblack. Y

The full, nature of the inventionwill be understood from the accompanying draw-v -rectly, but softly 'plpe 20.

points and each nozzle,

ings and the claims.

In the drawings, Figure 1 is a central vertion through one end portion of a tube and on an enlarged scale, the remainder being broken away. Fig. 4 is a vertical transverse section through one tube, showing a modified .form of scraper, the remaining parts being omitted.

A suitable casing 10 for themachine is provided having cross bars 11 on which beairings 12"are mounted for the shafts 13 an upon which the tubes 16 are supported and wherebythey are revolved. The lampblack is deposited upon the tube 16. A series of.

such tubes is provided, as shown in Fig. 1, and they are all revolved in the-same direc tion and the revolution. is caused by the rollers 15on the shaft 14, said shaft 14 being positively driven by a .sprocket wheel 115 which receives power source. Therefore, are driven, the remaining shafts being idle.

ratent ase aee, 191a following description and I 14 which carry the flanged rollers 15' from some suitable. only the alternate shafts Fig. 3 is a longitudinal central vertical sec 1 The ends of the tube 16 abut against the flanges on the rollers 15 and thereby are held from longitudinal displacement. The lampblack is V surfaces ofsaid tubes 16 by the burner pipes 18 located one undereach tube 16, and each .85 deposited upon the external pipe 18 has two rows of nozzles 19 for dis-I Y char g the-fuel for causing the flames whic strike the under-surface of the tube 16 and deposit the lampblack thereon. The burner pipe 18 is supplied with fuel from a supply leading from. said supply pipe 20 and. extending longitudinally through each lampblack tube. 16 and each pipe 21-has two rows -These nozzles diverge from extending at an inclination of, about 45 from a vertical line so that the of nozzles 22. each other,

flames or columns of smoke from the two rows of nozzles 22 willcome in contact with the inner surface of the tube'16 at different individual .de osit oflampblack on the in-- ner surface o the tube as 1t revolves- The lampblack is scraped from the outer surface of the tube 16 by gravity scrapers 25 pivoted on rods26 secure There is also a burner pipe 21.

therefore, makes its,

in the casing and .90 rise and the smoke from the flames extending parallel with the 5 tube being above a horizontal planethrough the axisof said tube so that the free edge of the scraper will rest by gravity on the up- 5 per portion of the tube and scrape the lampblack therefrom. The lampblack is scraped from the external surface'of the tubes, falls down between the tubes into a receptacle or a hopper 126 which is substantially V-shaped and is located under the entire surface of the tubes. and in the lower portion thereof a conveyer 27 is provided which discharges the'lampblack from said receptacle or hopper over an extension or lip 28, as shown in Fig. 2., Said conveyer 27 at one end has an arbor or shaft which at one end extends through a discharge opening 29 and is mounted in a bearing bracket 3.0 secured to the side of the casing. The other end is mounted in. the casing and has a sprocket wheel '31 whereby it 1s driven by a chain, not shown, running from the sprocket wheel The lampblack deposited on the inner 5 surface of the tube 16 is scraped therefrom by a scraper 35 which extends for the length of the tube and is substantially ogee shaped in cross section and is pivoted to. a fixed rod 36 which extends entirely through the tube 16 and is secured in the casing 10. The free edge of the scraper rides by gravity on the inner surface of the tube 16. The

' ogee-shape of said scraper is to enable a screw conveyer 37 to be located within each v "95' tube 16 immediately under said scraper, as

shown in Fig. 1. This conveyer extends longitudinally through the'tube and at its ends is mounted in the casing and is driven by a belt 38 extending from the conveyer 27,

shown in Fig. 2. Therefore, said conveyer 37' will discharge the lampblack from the end of the tube16, as shown in Fig. 3. However, it will not be necessary to have the conveyer 37 in the tube 16, as illustrated 46 is a scraper mounted substantially the same as the. scraper 35, but'somewhat diflierently'shaped. Without the conveyer 27the lampblack will accumulate in the lower part 50 of the tube 16 and roll out at the ends there'- of by gravity.

lation of lampblack in the middle of the tube which gradually tapers toward the ends ofthe 'tubet In order for the terior of the tube 16 to be supplied with suflicient oxygen from the atmosphere, rated, as shown, although said perforations are not entirely necessary, as sufficient air -current longitudinally through the tube 16 may be greatenough to blow. out some of the flames. One object of having the noz-- 1 zles 22 diverging, as shown in Fig. 1, is to 4 as separate the flames therefrom so as to leave 16 and I in the modified form in Fig. 4:, where there That .will cause an accumu-" tudinally through sai plane through the tube, and a scraper pivot-- said tube is preferably perfooluble tube, a burner a space longitudinally through each'tube in the upper part thereof between the two rows I of flames for the passage of the current ofair without blowing out the flames. There will be in any event a current of air passing longitudinally through the tube 16 and it will be chiefly located in the upper part. thereof and by combining two rows of flames, one on each side of said current of air, the current of air will not interfere with 7 5 the flames materially. r

Therefore, with this construction it is obvious that the capacity of the machine may be doubled without duplicating any of the parts thereof. The capacity of each tube maybe doubled and all of the lampblack from said tubes, whether formed on the 1nterior or exterior surface thereof, be discharged into the one receptacle in the machine. 5

The invention is: 1. A lampblack machine including a revoluble tube, a burner pi e located longitudinally beneath the tube for depositing lampblack on the outer surface thereof, a burner pipe extending longitudinally through the tube for depositing lampblack on the inner surface thereof, and means for scraping the lampblack from said tube.

2. A lampblack machine including a revoluble tube, a burner pi e located longitudinally beneath the'tube or depositing lampblack on the outer surface thereof, a burner pipe extending longitudinally through the tube for depositing lampblack on the inner surface thereof, andsepar'ate scrapers for removing the lampblack from the outer and inner surfaces of said tube respectively.

3. A lampblack machine including'a revoluble tube, a burner 'pe extending longi tudinally through said tube and provided with nozzles for directing flames againstthe interior surface of the tube, a fixed rod extending through said tube, and ascraper pivoted on saidrod with the free edge there'- of resting by gravity upon the inner surface'of the tube for scraping the lampblack therefrom.

4:. A lampblack machine including '9. revoluble tube a burner ipe extending longi 3 tube and: provided with nozzles for directing flames against the 'interior surface of the tube, a fixed rod extending through said tube below a horizontal ed'to said rod with the free edge thereof said tube below a central horizontal plane therethrough. 0 can enter at the ends, but in such event the .5. "A. lampblack. machine including 3, revipe extending longitube and provided tudinally through sai I with nozzles for-directing flames against the interior surface of'the tu e, means extending long tu nally through-said tube for sera' 1,111,ooe

ing the lampblack from the internal surface of the tube, and means for conveying the lampblack from within said tube to the ends thereof for discharging the same.

6. A lampblack machine including a revoluble tube a burner ipe extending longitudinally through said tube and provided with nozzles for directing flames against the interior surface of the tube, means extending longitudinally through said tube for scraping the lampblack from the internal surface of the tube, and a screw conveyer extending through said tube and located in the lower part thereof for conveying the lampblack to the ends of the tube for discharging the same.

7. A lampblack machine including a revoluble tube, a burner ipeextending longitudinally through said tube, and provided with nozzles for directing flames against the interior surface of'the tube, a fixed rod-extendingthrough-said tube below a horizontal plane through-the tube, a scraper pivoted to said rod with the free edge thereof resting by gravity on the inner surface of said tube below a central horizontal plane there- 'through, and a screw conveyer extending through said tube and located beneath said I scraper for conveying the lampblack to the ends of the tube for discharging the same.

8. A lampblack machine including a revolubletube, a burner pipe located beneath the tube for depositing lampblack on the external surface of the tube, a burner pipe extending longitudinally through the tube for depositing lampblack on the inner surface of the tube, a scraper for removing the lampblack from the outer surface of the tube, a scraper mounted within said tube for removing the lampblack from the inner sur- 40 face of the tube, and a receptacle beneath said tube for receiving the lampblack deposited on both the inner and outer surfaces of the tube.

9. A lampblack machine including a revoluble tube, a burner pipe located beneath the tube for depositing ampblack on the external surface of the tube, a burner pipe extending longitudinally through the tube for depositing lampblack on the inner surface of the tube, a scraper for removing the lampblack from the outer surface of the tube, a

scraper mounted within said tube for removing the lampblack from the inner surface of the tube, a receptacle beneath the tube for receiving the lampblack deposited on both the inner and outer surfaces of the tube, a screwconveyer extending longitudinally through said tube and located in. the lower part thereof for conveyingthe lampblack to the ends of the tube for discharging the same, a screw conveyer in the lower part of said receptacle for dischar the lampblack deposited therein, and dri means connecting said conveyors for causing t5 them to operate together.

In witness whereof, I have hereunto my s gnature in the presence of the-witnesses hereln named. I WILLIAM H. Davis Witnesses: v J. H. Wm,

0 M. MoLAUGrmm. 

